Authors: L.V. Panina, O.S. Efimova, A.N. Popova, Ismagilov

Title of the article: Influence of drying conditions on structural characteristics of graphene oxide films obtained from penographite

Year: 2021, Issue: 6, Pages: 5-12

Branch of knowledge: 05.17.01 Technology of inorganic substances

Index UDK: 546-05

DOI: 10.26730/1999-4125-2021-6-5-12

Abstract: This paper presents the results of X-ray diffraction analysis of graphene oxide films obtained under different drying conditions. The exhaust gas suspension was dried by freeze drying (lyophilization), natural drying in the open air, and in an oven at 105 ° C. Graphene oxide (GO) was synthesized according to the modified Hammers method using graphite foam (PG) as a starting material. The crystallinity of the structures of GO films was investigated using X-ray diffraction analysis (XRD) using the OriginPro 8 software to decompose asymmetric reflections into components. The obtained results of the study by the XRD method make it possible to obtain data on the change in the interplanar distance of the GO films obtained under different drying conditions. Thus, the value of the interplanar distance for the exhaust gas obtained from the PG, according to the modified Hammers method, under different drying conditions can vary from 0.64-0.95 nm.

Key words: thermally expanded graphite graphene oxide modified Hammers method X-ray structural analysis method

Receiving date: 26.10.2021

Approval date: 05.12.2021

Publication date: 24.12.2021

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